Answer:
Step-by-step explanation:
Since there exists a scalar
λ
λ
(namely
λ=a⋅b
λ=a⋅b
) such that
b=λa
b=λa
, the directions of the two vertices are the same (they are collinear). This implies that
|a⋅b|=|a||b|
|a⋅b|=|a||b|
.
So,
|a|=|(a⋅b)b|=|a||b||b|
|a|=|(a⋅b)b|=|a||b||b|
which implies that
|b|=1
|b|=1
Photographing stars requires you to keep your exposure open for a long time. Taking pictures of star trails would take about 30 minutes to three hours. If you multiply that for the 6 stars stated above in the problem then you would be needing that much time if the stars were close and approximately 3 to 18 hours capture their star trails if they were far apart from each other.
4(7x-1) this is how its factored :)
What is one-tenth of 24?
1/10 × 24/1
1 × 24 = 24
10 × 1 = 10
24/10
24 ÷ 10 = 2.4
2 × 10 = 20
24 - 20 = 4
2 2/5
one-tenth of 24 is 2.4 or 24/10 or 2 2/5.
Answer:
13.007, 13.1, 13.68, and then 13.986
Step-by-step explanation:
Put them in order from greatest to least.
